Home / 5,263.76-7,894.44-2,145.92

Finding the Fourth Proportional to 5,263.76, 7,894.44 and 2,145.92

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Solution

The fourth proportional to 5,263.76, 7,894.44 and 2,145.92 is: 3,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.76 : 7,894.44 = 2,145.92 : x
  2. Step 2: Convert to fraction form
    5,263.76/7,894.44 = 2,145.92/x
  3. Step 3: Cross multiply
    5,263.76x = 7,894.44 × 2,145.92
  4. Step 4: Simplify right side
    5,263.76x = 16,940,836.68
  5. Step 5: Solve for x
    x = 16,940,836.68/5,263.76
  6. Step 6: Final answer
    x = 3,218.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.